Home / 321,270.08-443,355.32-178,032.52

Finding the Fourth Proportional to 321,270.08, 443,355.32 and 178,032.52

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Solution

The fourth proportional to 321,270.08, 443,355.32 and 178,032.52 is: 245,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,270.08 : 443,355.32 = 178,032.52 : x
  2. Step 2: Convert to fraction form
    321,270.08/443,355.32 = 178,032.52/x
  3. Step 3: Cross multiply
    321,270.08x = 443,355.32 × 178,032.52
  4. Step 4: Simplify right side
    321,270.08x = 78,931,661,768.07
  5. Step 5: Solve for x
    x = 78,931,661,768.07/321,270.08
  6. Step 6: Final answer
    x = 245,686.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.